Fluid Mechanics Research

流体力学研究

基本信息

批准号：
1157-2012
负责人：
Tavoularis, Stavros
金额：
$ 4.08万
依托单位：
University of Ottawa
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2015
资助国家：
加拿大
起止时间：
2015-01-01 至 2016-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=568176
关键词：
Fluid Mechanics Research

项目摘要

The objective of the proposed research is to contribute to knowledge in the following fundamental problems of fluid mechanics. 1. Turbulence structure and turbulent mixing: i) measurements of passive scalar dispersion from a continuous point source in sheared turbulence. al mixing layer in sheared turbulence; ii) measurements of probability density functions and fine-structure properties of temperature fluctuations in a thermal mixing layer embedded in sheared turbulence; iii) interactions of coherent structures in USF with structures near stationary and moving walls. 2. Vortex dynamics: i) interactions between a wing-tip vortex and free-stream turbulence; ii) vortex instability under forced periodic and random excitations; iii) vortex shedding near a moving wall. 3. Cardiovascular mechanics: i) in vitro studies of blood flow near a bileaflet mechanical heart valve in pulsatile flow through a physiologically accurate model of the aorta; ii) numerical simulations of blood flow and myocardium motion in the canine heart; iii) numerical simulations of blood flow in diaphragm-type ventricular assist devices. This long-term research on fundamental engineering problems will be conducted in parallel with experimental and computational research contributing to the solution of pressing technological problems of the nuclear and aerospace industries, which is financed by CRD grants by NSERC and the Industry and is unrelated to the present proposal.

本研究的目的是为以下流体力学基本问题的知识做出贡献。 1. 湍流结构和湍流混合：i) 剪切湍流中连续点源的被动标量色散测量。剪切湍流中的混合层； ii) 嵌入剪切湍流的热混合层中温度波动的概率密度函数和精细结构特性的测量； iii) USF 中的相干结构与静止和移动墙壁附近的结构的相互作用。 2. 涡动力学： i) 翼尖涡和自由流湍流之间的相互作用； ii) 强制周期性和随机激励下的涡旋不稳定性； iii) 移动壁附近的涡旋脱落。 3. 心血管力学：i) 通过生理学精确的主动脉模型，对双叶机械心脏瓣膜附近的脉动血流进行体外研究； ii) 犬心脏血流和心肌运动的数值模拟； iii) 隔膜型心室辅助装置中血流的数值模拟。这项针对基础工程问题的长期研究将与实验和计算研究同时进行，这些研究有助于解决核工业和航空航天工业的紧迫技术问题，该研究由 NSERC 和工业界的 CRD 拨款资助，与提出建议。